Construction on Baracke X began in July 1942, using the labor of the Catholic priests who were the only prisoners not forced to work in the factories at Dachau. The building was finished in 1943, but a sign that was put in the gas chamber in 1965 inexplicably informed tourists that this room was never used for gassing people. By May 2003, the sign was gone and a poster on the wall of the undressing room next to the gas chamber said that the gas chamber "could have been used" to kill prisoners.
Starting out with 45 employees, the company grew to more than 1,700 at its peak in 1944. Initially, Schindler hired Jewish workers because they were a less expensive Polish workforce. But as Nazi atrocities against the Jewish community increased, Schindler’s attitude changed. With the help of Stern, he found reasons to hire more Jewish workers, regardless of their abilities. By 1942, nearly half of his employees were Jewish and were known as Schindlerjuden (Schindler Jews). When the Nazis began to relocate Krakow’s Jews to labor camps, Itzhak Stern and several hundred other employees were among them. Schindler raced to the train station and confronted an SS officer, arguing that his workers were essential to the war effort. After several tense minutes of dropping names and making veiled threats, Schindler was able to free his workers and escort them back to the factory.
After 1945 the name was applied to the displaced persons camp established nearby, but it is most commonly associated with the concentration camp. From 1941 to 1945, almost 20,000 Soviet prisoners of war and a further 50,000 inmates died there. Overcrowding, lack of food and poor sanitary conditions caused outbreaks of typhus, tuberculosis, typhoid fever and dysentery, leading to the deaths of more than 35,000 people in the first few months of 1945, shortly before and after the liberation.